39 static uint32_t gr_current = ~0;
40 static constexpr uint32_t alpha_mask = 0xff000000;
80 static inline uint32_t pixel_blend(uint8_t alpha, uint32_t pix) {  in pixel_blend()
83   uint32_t pix_r = pix & 0xff;  in pixel_blend()
84   uint32_t pix_g = pix & 0xff00;  in pixel_blend()
85   uint32_t pix_b = pix & 0xff0000;  in pixel_blend()
86   uint32_t cur_r = gr_current & 0xff;  in pixel_blend()
87   uint32_t cur_g = gr_current & 0xff00;  in pixel_blend()
88   uint32_t cur_b = gr_current & 0xff0000;  in pixel_blend()
90   uint32_t out_r = (pix_r * (255 - alpha) + cur_r * alpha) / 255;  in pixel_blend()
91   uint32_t out_g = (pix_g * (255 - alpha) + cur_g * alpha) / 255;  in pixel_blend()
92   uint32_t out_b = (pix_b * (255 - alpha) + cur_b * alpha) / 255;  in pixel_blend()
98 static void incr_x(uint32_t** p, int row_pixels) {  in incr_x()
111 static void incr_y(uint32_t** p, int row_pixels) {  in incr_y()
124 static uint32_t* PixelAt(GRSurface* surface, int x, int y, int row_pixels) {  in PixelAt()
127       return reinterpret_cast<uint32_t*>(surface->data()) + y * row_pixels + x;  in PixelAt()
129       return reinterpret_cast<uint32_t*>(surface->data()) + x * row_pixels + (surface->width - y);  in PixelAt()
131       return reinterpret_cast<uint32_t*>(surface->data()) + (surface->height - 1 - y) * row_pixels +  in PixelAt()
134       return reinterpret_cast<uint32_t*>(surface->data()) + (surface->height - 1 - x) * row_pixels +  in PixelAt()
142 static void TextBlend(const uint8_t* src_p, int src_row_bytes, uint32_t* dst_p, int dst_row_pixels,  in TextBlend()
147     uint32_t* px = dst_p;  in TextBlend()
150       if (alpha_current < 255) a = (static_cast<uint32_t>(a) * alpha_current) / 255;  in TextBlend()
182     uint32_t* dst_p = PixelAt(gr_draw, x, y, row_pixels);  in gr_text()
206   uint32_t* dst_p = PixelAt(gr_draw, x, y, row_pixels);  in gr_texticon()
211   uint32_t r32 = r, g32 = g, b32 = b, a32 = a;  in gr_color()
226     uint32_t* px = reinterpret_cast<uint32_t*>(gr_draw->data());  in gr_clear()
247   uint32_t* p = PixelAt(gr_draw, x1, y1, row_pixels);  in gr_fill()
251       uint32_t* px = p;  in gr_fill()
277     const uint32_t* src_py =  in gr_blit()
278         reinterpret_cast<const uint32_t*>(source->data()) + sy * source->row_bytes / 4 + sx;  in gr_blit()
279     uint32_t* dst_py = PixelAt(gr_draw, dx, dy, row_pixels);  in gr_blit()
282       const uint32_t* src_px = src_py;  in gr_blit()
283       uint32_t* dst_px = dst_py;  in gr_blit()